CompTIA Updated SK0-005 Exam Questions and Answers by mahnoor

SSH (Secure Shell) is a protocol that would most likely be implemented to encrypt data in transit for remote administration. SSH provides secure communication between two devices over an unsecured network by using public-key cryptography and symmetric encryption. SSH can be used to remotely execute commands, transfer files, or tunnel other protocols. Telnet, TFTP, and rlogin are protocols that do not encrypt data in transit and are considered insecure for remote administration. References: [CompTIA Server+ Certification Exam Objectives], Domain 2.0: Networking, Objective 2.4: Given a scenario involving network security/access methods, implement an appropriate solution.

Link aggregation is the best option to implement on the new server to ensure the least amount of network downtime but a good amount of network speed. Link aggregation is a technique of combining multiple physical network interfaces into one logical interface to increase bandwidth, redundancy, and load balancing. Link aggregation can improve the performance and availability of the server by allowing it to use more than one network path for data transmission and failover in case of link failure. Link aggregation can be implemented using various protocols, such as IEEE 802.3ad (LACP), Cisco EtherChannel, or Linux bonding. References: [CompTIA Server+ Certification Exam Objectives], Domain 4.0: Networking, Objective 4.1: Given a scenario, configure network settings for servers.

When clients on a different VLAN cannot receive DHCP addresses, it’s often because there is noDHCP helper addressconfigured on the router or switch. ADHCP relay/helper addressforwards DHCP requests from clients on the VLAN to the DHCP server, which may reside on a different network.

Confirming the network has a helper address (Answer C):This should be the first step to ensure that DHCP requests from the VLAN are correctly routed to the DHCP server.

Checking client NIC speed (Option A):While important, incorrect NIC speed wouldn't affect the ability to obtain an IP address from DHCP.

Checking NTP server (Option B):Time synchronization is unrelated to DHCP issues.

Authorizing the DHCP server (Option D):This is essential for DHCP operation, but since this is an existing DHCP cluster, the helper address is more likely the issue.

CompTIA Server+ Reference:This topic is related toSK0-005 Objective 1.2: Manage server network connections.

In a situation where a server reboots randomly, the first step should be to check for any issues with the power supply. Random reboots can often be caused by intermittent power supply issues, which can be due to faulty power cables, loose connections, or problems with the power source itself. This is especially pertinent in environments like a paper mill where dust and debris might affect cable integrity. Since the issue occurs every other day and at random times, it's less likely to be caused by components that would typically fail due to overheating or other gradual issues (like RAM or CPU heat sink problems). Therefore, checking the power cables is the simplest and most direct first step to troubleshoot the issue.